Based on presentations made at a conference sponsored by the Social Science Research Council''s Committee on Social and Affective Development During Childhood, held at Harwichport, Mass., in June 1982.

Based on presentations made at a conference sponsored by the Social Science Research Council''s Committee on Social and Affective Development During Childhood, held at Harwichport, Mass., in June 1982.

Based on presentations made at a conference sponsored by the Social Science Research Council''s Committee on Social and Affective Development During Childhood, held at Harwichport, Mass., in June 1982.